Gaussian diffraction model for Sb thin films in super-resolution near-field structure

Qingling Qu; Yang Wang; Liyong Ren; Jingsong Wei; Fuxi Gan

doi:10.1117/12.649659

15 September 2005 Gaussian diffraction model for Sb thin films in super-resolution near-field structure

Qingling Qu, Yang Wang, Liyong Ren, Jingsong Wei, Fuxi Gan

Proceedings Volume 5966, Seventh International Symposium on Optical Storage (ISOS 2005); 59661A (2005) https://doi.org/10.1117/12.649659
Event: Seventh International Symposium on Optical Storage (ISOS 2005), 2005, Zhanjiang, China

Abstract

According to the change of refractive index of Sb thin film with temperature and the radial distribution of temperature within the spot, we can consider the spot irradiated by a Gaussian beam as a phase-modulated screen. Based on Fresnel-kirchhoff diffraction theory, a Gaussian diffraction model which can compute the intensity from far field has been set up. Using this model we can study the nonlinear change of mask layer samples induced by different reasons. A numerical calculation of the transmittance through an Sb-type super-resolution near-field structure was carried out as an example. The Gaussian diffraction model, which is similar to the far field detection process in the optical disk system, is very useful for analyzing the photothermal-induced local structure change of thin films in phase-change and super-resolution optical disks.

Citation Download Citation

Qingling Qu, Yang Wang, Liyong Ren, Jingsong Wei, and Fuxi Gan "Gaussian diffraction model for Sb thin films in super-resolution near-field structure", Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59661A (15 September 2005); https://doi.org/10.1117/12.649659

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available